🤝
Make a deal with Lars Fischer
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
48
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Lars Fischer
Known for
📊 Post engagement
3
Avg engagement / post
6.3%
Engagement vs followers
Apr 2023
On Mastodon since
🔥 Top post: "https://bobdahacker.com/blog/fifa-hack da hätte Fifa wohl mal u · 16 likes + reposts
📊 Activity & format
Posting cadence
0.57 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 10 text · 2 image · 0 video.
Follower / following
0.8×
Follows 62 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
I wanted to report regularly on the preparations for the next semester. There is a project and a course in system security to be prepared. And as usual I want to improve the material I have at hand.
System security is split up in two parts…
Today I reviewed results from the current assignment: build an automated CA, and I must say I have mostly been impressed by the results and the thoughtfulness of students.
First they had to code a simple HTTP-like server (and I recommende…
Tag der Vertrauenswürdigen Systeme an der Hochschule Bremerhaven. Die Student:inn:en des Studiengangs Master IVS stellen die Ergebnisse des Semesterprojektes vor.
2026-07-07T12:30 (CEST)
Vor Ort oder https://bbb.hs-bremerhaven.de/rooms/xo…
Auf dem Koggethon 2026 haben drei Teams sich ein enges Rennen um die Spitze beim Zerlegen des OWASP Juice Shops geliefert.
Wenn du mein Betriebssystem unter Kontrolle hast, wieso musst du mir das in einem PDF mitteilen? Ich fände es beeindruckender, wenn da einfach die klassische Erpressernachricht auf dem Bildschirm auftaucht. Ausserdem ist das PDF das du mir…
Temperatur im Büro heute 31°C.
Let me borrow from Bruce Schneier @Schneier_rss: ‘We don’t issue letters of marque on the high seas anymore; we shouldn’t do it in cyberspace.’ [1]
He has gotten struck by a sentence in the 2026 US Cyber Strategy (linked in [1]) which seem…
Now I have demonstrated to myself how to burrow a posting by bad timing of publication.
And because it still is fresh in my mind, I quickly threw together a brief tutorial on ``sq``. This will be used in the summer term in the bachelor-course on IT-security.
Dear @sequoiapgp if you would be so kind as to throw an eye onto th…
Short:
I had to rotate my OpenPGP-keys. The current key is now
63F831BAAAFEA6B63D9514E441D8FF5258F8FB4A
Get it from the usual keyservers.
Long:
I am switching from GnuPG to sequoia-pgp and at the same time I had two expired subkeys. A ``…
Ongoing
Wenn du mein Betriebssystem unter Kontrolle hast, wieso musst du mir das in einem PDF mitteilen? Ich fände es beeindruckender, wenn da einfach die klassische Erpressernachricht auf dem Bildschirm auftaucht. Ausserdem ist das PDF das du mir…
Temperatur im Büro heute 31°C.
Let me borrow from Bruce Schneier @Schneier_rss: ‘We don’t issue letters of marque on the high seas anymore; we shouldn’t do it in cyberspace.’ [1]
He has gotten struck by a sentence in the 2026 US Cyber Strategy (linked in [1]) which seem…
Now I have demonstrated to myself how to burrow a posting by bad timing of publication.
And because it still is fresh in my mind, I quickly threw together a brief tutorial on ``sq``. This will be used in the summer term in the bachelor-course on IT-security.
Dear @sequoiapgp if you would be so kind as to throw an eye onto th…
Short:
I had to rotate my OpenPGP-keys. The current key is now
63F831BAAAFEA6B63D9514E441D8FF5258F8FB4A
Get it from the usual keyservers.
Long:
I am switching from GnuPG to sequoia-pgp and at the same time I had two expired subkeys. A ``…
Ongoing
🐘 Community & instance
Home server
infosec.exchange
A cybersecurity & infosec server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
On Mastodon since
Apr 2023
An established account with real history on the platform.
💡 Facts
🗓️Joined Mastodon in 2023 — 3 years ago.
👁️Averages 3 views per post.
📤Posts about 0.6× per week.
🕵️ Fake follower check
Estimated76/100
Good
Credibility score
97%
Real
Real audience
Low
Fake-follower risk
Medium
Data confidence
- Est. 97% real, active audience · Low fake-follower risk.
- Strong engagement (~6.3% of followers engage each post) — an active, real audience.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Teaching IT-Security and Math (since 2020 or forever, whatever came first)
Practicing Habitual Automation
(languages Deutsch and English, depending on topic)
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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Lars Fischer has 48 followers on Mastodon.
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